This is a list of Pokémon obtainable from events found in the Generation IIPokémon games. These specific instances of Pokémon can only be obtained once per game; however, some may also be obtained in other ways as well.

Varies by Version

The following Pokémon can either be found in all game under varying conditions, or are completely exclusive to one particular game.

Non-Legendary Pokémon

Dratini

In Pokémon Crystal only, this Dratini can be obtained in the Dragon's Den after the player answers the Dragon Master's quiz. If the player gives an incorrect answer to one of the quiz questions, ExtremeSpeed will be replaced with Leer.

Crystal

Celebi

In the Japanese version of Pokémon Crystal only, this Celebi was obtainable at the shrine inside the Ilex Forest if the player downloaded an event that distributed the GS Ball on their Mobile System GB. Since the Mobile System GB accessory was never released outside of Japan, no international players could get the GS Ball outside of the use of cheating devices.